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    • 20. 发明申请
    • THERMAL CONDUCTIVE ELECTROMAGNETIC WAVE ABSORBING SHEET
    • 导热电磁波吸收片
    • US20160122610A1
    • 2016-05-05
    • US14928030
    • 2015-10-30
    • Kitagawa Industries Co., Ltd.
    • Yasuhiro KawaguchiTakashi Mizuno
    • C09K5/08H05K9/00C08K9/04C08K9/02C08J5/18C08K3/22
    • C09K5/08C08J5/18C08J2333/06C08K3/22C08K9/02C08K9/04C08K2003/2275H05K9/0083
    • A thermal conductive electromagnetic wave absorbing sheet to be provided includes: a polymer including acrylate ester as a monomer; a metal magnetic oxide; and flame retardant filler subjected to surface treatment. The metal magnetic oxide includes a small-diameter metal magnetic oxide with an average particle diameter of 1 to 10 μm and a large-diameter metal magnetic oxide with an average particle diameter of 50 to 100 μm. A mixing ratio between the small-diameter metal magnetic oxide and the large-diameter metal magnetic oxide is in a range of 9:13 to 15:7 in volume ratio. The small-diameter metal magnetic oxide and the large-diameter metal magnetic oxide are contained by 55 to 60 vol % in total in the entire thermal conductive electromagnetic wave absorbing sheet. The flame retardant filler subjected to the surface treatment is contained by 8 to 10 vol % in the entire thermal conductive electromagnetic wave absorbing sheet.
    • 所提供的导热电磁波吸收片包括:包含丙烯酸酯作为单体的聚合物; 金属氧化物; 和阻燃填料进行表面处理。 金属磁性氧化物包括平均粒径为1〜10μm的小直径金属磁性氧化物和平均粒径为50〜100μm的大直径的金属磁性氧化物。 小直径金属氧化物与大直径金属磁性氧化物的混合比在体积比为9:13〜15:7的范围内。 在整个导热电磁波吸收片中,小直径金属磁性氧化物和大直径金属磁性氧化物的总含量为55〜60体积%。 在整个导热电磁波吸收片中,经表面处理的阻燃剂填料含有8至10体积%。